gistfile1.rb

class SpiderController < ApplicationController
  def index
    @sites = Site.all
    @sites.each do |site|
      uri = URI.parse(site.url)
      http = Net::HTTP.new(uri.host, uri.port)
      request = Net::HTTP::Get.new(uri.request_uri)
      request["User-Agent"] = "Status Monitor"
      response = http.request(request)
      
      last = Status.first(:order => "created_at DESC", :conditions => ["site_id = ? AND created_at <= ?", site.id, 1.hour.ago]);
      if !last
        status = Status.create(:site => site, :status => response.code)
      end
    end
  end
end